Entry 1 sense Webster, 1913 Participator /(pär*tĭs"ĭ*pā`tẽr)/ · Par·tic·i·pa·tor · IPA /pɑɹˈtɪsəˌpeɪtɚ/ 01 n. One who participates, or shares with another; a partaker. 1. One who participates, or shares with another; a partaker.